<?php

class TeachingController extends Controller
{
    public $chooseName = 'Teaching Manage';
    /**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout='//layouts/column3';

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
			'postOnly + delete', // we only allow deletion via POST request
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
		/*	array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view'),
				'users'=>array('*'),
			),
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('create','update'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete'),
				'users'=>array('admin'),
			),
			array('deny',  // deny all users
				'users'=>array('*'),
            ),*/
		);
	}

    /**
     * Upload the resources under this teaching
     * @author : nonglei
     * @date   : 16/03/2014
     */
	public function actionView($id)
    {
        $modelFile = new Resources;

        if(isset($_POST["Resources"]))
        {
            $teachingResource = new TeachingResources;
            $modelFile->upload("Resources[file]",yii::app()->params['upload_teachingResource'],false);
            $teachingResource->title = $_POST['title'];
            $teachingResource->content = $_POST['content'];
            $teachingResource->teaching_id = $id;
            $teachingResource->resources_id = $modelFile->resources_id;
            $teachingResource->status = 1;
            if(!$teachingResource->save())
            {
                $modelFile->delete();
                throw new CHttpException("Upload Error!.");
            }
            else
            {
                echo "<script type=\"text/javascript\">alert(\"Upload Success\")</script>";
            }
        }
        $dataProvider = new CActiveDataProvider('TeachingResources',array(
            'criteria'=>array(
            'condition'=>'teaching_id = '.$id,
        )));

        $this->render('view',array(
            'model'=>$this->loadModel($id),
            'modelFile'=>$modelFile,
            'dataProvider'=>$dataProvider,
        ));
    }
  	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$model=new Teaching;

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Teaching']))
		{
			$model->attributes = $_POST['Teaching'];
            $model->user_id = yii::app()->user->id;
            if($model->save())
				$this->redirect(array('view','id'=>$model->teaching_id));
		}

		$this->render('create',array(
			'model'=>$model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Teaching']))
		{
			$model->attributes=$_POST['Teaching'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->teaching_id));
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		$this->loadModel($id)->delete();

		// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
		if(!isset($_GET['ajax']))
			$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDeleteResources($rid)
	{
        $model = Resources::model()->findByPk($rid);
        $model->deleteRealResources();
        $model->delete();
        //$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$dataProvider=new CActiveDataProvider('Teaching');
		$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Teaching('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Teaching']))
			$model->attributes=$_GET['Teaching'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer $id the ID of the model to be loaded
	 * @return Teaching the loaded model
	 * @throws CHttpException
	 */
	public function loadModel($id)
	{
		$model=Teaching::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param Teaching $model the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='teaching-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}
